* {
    margin: 0;
    padding: 0;
    list-style: none;
    text-decoration: none;
}

/* 字符图标 */
.icon {
    width: 1em;
    height: 1em;
    vertical-align: -0.15em;
    fill: currentColor;
    overflow: hidden;
}

/* 分享 */
.fenxiang {
    margin: 0px 10px 0px 15px;
}

/* 向下 */
.xiangxia {
    font-size: 36px;
    position: absolute;
    top: -18px;
    left: calc((1500px - 36px) / 2);
    background: #fff;
    border-radius: 50%;
}

/* 微博 */
.weibo {
    font-size: 16px;
}

.wrap {
    width: 1500px;
    height: 2000px;
    margin: 0 auto;
}

.nav {
    width: 100%;
    height: 75px;
    background: linear-gradient(0deg, rgb(245, 245, 245), white, rgb(245, 245, 245));
}

/* 伪元素清除浮动 */
.nav::after {
    content: "";
    clear: both;
    display: block;
    height: 0;
}

.nav>ul>li {
    float: left;
    position: relative;
}

.nav>ul>li>img {
    display: block;
    margin: 10px 41px 9px 60px;
}

.nav>ul>li>a {
    width: 150px;
    height: 75px;
    color: black;
    display: block;
    text-align: center;
    line-height: 75px;
    font-size: 12px;
    box-sizing: border-box;
    border-right: 1px solid rgb(166, 166, 166);
}

.nav>ul>li>a:hover {
    background: rgb(234, 234, 234);
}

/* 二级导航栏 */
.list {
    clear: both;
    display: none;
    position: absolute;
    top: 75px;
    z-index: 1;
}

.list ul li a {
    width: 150px;
    height: 50px;
    color: blueviolet;
    display: block;
    text-align: center;
    line-height: 50px;
    font-size: 14px;
    background: linear-gradient(0deg, rgb(243, 243, 243), white, rgb(243, 243, 243));
    box-sizing: border-box;
}

.nav>ul>li:hover .list {
    display: block;
}

.nav>ul>li:hover .list ul li a:hover {
    background: rgb(234, 234, 234);
}

.photo {
    width: 100%;
    height: 520px;
    background: url("../images/首页_01.png") no-repeat;
    position: relative;
}

.photo span {
    color: #fff;
    font-size: 12px;
    position: absolute;
}

.photo span:nth-child(1) {
    top: 15px;
    left: 310px;
}

.photo span:nth-child(2) {
    font-size: 16px;
    top: 12px;
    left: 373px;
}

.photo span:nth-child(3) {
    top: 15px;
    left: 390px;
}

.photo span:nth-child(4) {
    font-size: 48px;
    font-weight: bold;
    text-shadow: 1px 1px 2px #000;
    top: 135px;
    left: 315px;
}

.photo span:nth-child(5) {
    font-size: 17px;
    top: 195px;
    left: 315px;
    font-style: italic;
}

.photo span:nth-child(6) {
    font-size: 22px;
    text-shadow: 1px 1px 2px #000;
    top: 220px;
    left: 315px;
}

.photo div {
    padding: 3px;
    background-color: #fff;
    position: absolute;
    top: 280px;
    left: 315px;
    box-shadow: 2px 2px 5px 1px #fff;
}

.photo div img {
    display: block;
}

.photo span:nth-child(8) {
    line-height: 35px;
    border-radius: 5px;
    background: rgb(31, 91, 140);
    padding: 0 15px;
    top: 390px;
    left: 315px;
}

.photo span:nth-child(9) {
    line-height: 35px;
    border-radius: 5px;
    background: linear-gradient(90deg, rgb(31, 91, 140) 0%, rgb(31, 91, 140) 70%, rgb(180, 180, 180) 71%, rgb(31, 91, 140) 72%);
    padding-left: 15px;
    top: 390px;
    left: 430px;
}

main {
    width: 100%;
    height: 1350px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

main .content_nav {
    width: 1020px;
    color: #fff;
    line-height: 30px;
    font-size: 12px;
    background-color: rgb(31, 91, 140);
    position: relative;
}

main .content_nav p span {
    width: 36px;
    display: inline-block;
    line-height: 20px;
    /* background: rgb(54, 130, 193); */
    background: linear-gradient(to bottom, rgb(99, 188, 223) 50%, rgb(54, 144, 179) 50%);
    padding: 0px 15px 0 10px;
    margin: 0 50px 0 40px;
}

main .content_nav p span::after {
    content: "";
    width: 0;
    height: 0;
    display: block;
    border-top: 10px solid rgb(31, 91, 140);
    border-right: 10px solid rgb(31, 91, 140);
    border-left: 10px solid transparent;
    border-bottom: 10px solid rgb(31, 91, 140);
    position: absolute;
    top: 5px;
    left: 91px;
}

/* 前面三角形 */
main .content_nav p::before {
    content: "";
    width: 0;
    height: 0;
    display: block;
    border-top: 15px solid rgb(31, 91, 140);
    border-right: 10px solid rgb(31, 91, 140);
    border-left: 10px solid transparent;
    border-bottom: 15px solid transparent;
    position: absolute;
    top: 0px;
    left: -20px;
}

/* 后面三角形 */
main .content_nav p::after {
    content: "";
    width: 0;
    height: 0;
    display: block;
    border-top: 15px solid rgb(31, 91, 140);
    border-left: 10px solid rgb(31, 91, 140);
    border-right: 10px solid transparent;
    border-bottom: 15px solid transparent;
    position: absolute;
    top: 0px;
    right: -20px;
}

main .content_head {
    width: 1400px;
    display: flex;
    justify-content: center;
    margin-top: 70px;
    padding-bottom: 60px;
    box-shadow: 0px 15px 13px -15px rgb(124, 124, 124);
}

main .content_head .rect {
    width: 300px;
    height: 270px;
    text-align: center;
    box-shadow: 0px 10px 10px -5px rgb(57, 57, 57);
}

main .content_head .rect p:first-of-type {
    margin-top: 20px;
}

main .content_head .rect p:last-child {
    color: rgb(120, 120, 120);
    width: 270px;
    font-size: 12px;
    margin: 15px;
}

main .content_head .rect:nth-child(2) {
    margin: 0px 50px;
}

main .content_survey {
    width: 1000px;
    height: 470px;
}

main .content_survey p {
    text-align: center;
    font-size: 30px;
    margin: 60px 0 10px;
}

main .content_survey div>* {
    margin-left: 90px;
    float: left;
    display: block;
}

main .content_survey div>span:nth-of-type(1) {
    margin: 70px 0px 30px 90px;
}

main .content_survey div>span:nth-of-type(n+2) {
    color: rgb(103, 103, 103);
    font-size: 12px;
    line-height: 25px;
}

main .content_survey div span span {
    font-size: 16px;
    font-style: italic;
}

main .content_survey div button:first-of-type {
    color: #fff;
    line-height: 40px;
    background: rgb(31, 91, 140);
    border: 0;
    padding: 0 20px;
    border-radius: 5px;
    margin-top: 55px;
}

main .content_survey div button:last-of-type {
    color: #fff;
    line-height: 40px;
    background: linear-gradient(90deg, rgb(45, 45, 45) 0%, rgb(45, 45, 45) 70%, rgb(180, 180, 180) 71%, rgb(45, 45, 45) 72%);
    padding-left: 15px;
    border: 0;
    border-radius: 5px;
    margin: 55px 0 0 15px;
}

main .content_follow {
    width: 100%;
    height: 450px;
    background-color: rgb(237, 237, 237);
    position: relative;
}

main .content_follow>p {
    text-align: center;
    font-size: 30px;
    margin: 55px 0 60px;
}

main .content_follow .content_follow_one {
    width: 830px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
}

main .content_follow .content_follow_two {
    width: 540px;
    margin: 45px auto;
    display: flex;
    justify-content: space-between;
}

main .content_follow .circle {
    width: 190px;
    height: 83px;
    position: relative;
}

main .content_follow .circle>* {
    float: left;
}

main .content_follow .circle p:nth-of-type(1) {
    width: 85px;
    font-size: 14px;
    margin-left: 20px;
    margin-top: 15px;
}

main .content_follow .circle p:nth-of-type(2) {
    font-size: 12px;
    background: #fff;
    position: absolute;
    bottom: 0;
    left: 105px;
}

main .content_follow .circle p span {
    display: inline-block;
    color: #fff;
    line-height: 20px;
    background-color: rgb(227, 17, 17);
    padding: 0 2px;
    border-top-right-radius: 5px;
    border-bottom-right-radius: 5px;

}

footer {
    width: 100%;
    height: 75px;
    background-color: #000;
    color: #fff;
    font-size: 12px;
    line-height: 75px;
}

footer img {
    height: 16px;
    display: inline-block;
    vertical-align: middle;
    margin-left: 270px;
}

footer a {
    color: #fff;
    vertical-align: middle;
    margin: 0 10px;
}

footer span {
    vertical-align: middle;
    margin-left: 300px;
}